(Cat? OR feline) AND NOT dog?
Cat? W/5 behavior
(Cat? OR feline) AND traits
Cat AND charact*

This guide provides a more detailed description of the syntax that is supported along with examples.

This search box also supports the look-up of an IP.com Digital Signature (also referred to as Fingerprint); enter the 72-, 48-, or 32-character code to retrieve details of the associated file or submission.

Concept Search - What can I type?

For a concept search, you can enter phrases, sentences, or full paragraphs in English. For example, copy and paste the abstract of a patent application or paragraphs from an article.

Concept search eliminates the need for complex Boolean syntax to inform retrieval. Our Semantic Gist engine uses advanced cognitive semantic analysis to extract the meaning of data. This reduces the chances of missing valuable information, that may result from traditional keyword searching.

Cabling harness to extend mesh connection to 9 systems.

Publishing Venue

IBM

Abstract

Interconnecting multiple systems can be done simply and cheaply by directly linking each server to every other server. But, the cabling can be difficult to implement as the number of systems increases. And, for systems that provide multiple different types of connectors, it may be impossible to utilize every available connector to achieve the largest possible interconnected cluster. Scaling beyond the number of systems that can be directly connected usually adds additional cost in the form of an external switch, or reduces performance by forcing multiple system-system communications paths to share a physical. A prior article (insert reference) describes a new cabling harness which fully utilizes a single connector containing three links to create a four system cluster. This article describes an additional new cable harness that would allow direct interconnection of a seven node cluster when two of these same three link connectors are available on each node.

Country

Undisclosed

Language

English (United States)

This text was extracted from a PDF file.

At least one non-text object (such as an image or picture) has been suppressed.

This is the abbreviated version, containing approximately
52% of the total text.

Page 1 of 4

Cabling harness to extend mesh connection to 9 systems.

The InfiniBand Standard (ref: http://www.infinibandta.org ) defines a 4x link and a
specific 4x copper connector which is used for almost all current InfiniBand box to box
connections. The standard also defines a 12x link and a specific 12x copper connector
which bundles the equivalent of three 4x links into a single connector. 12x connections
are just starting to appear in products. These 12x connections are intended to provide
higher bandwidth connections, while requiring less panel space and cabling than three
4x connections in parallel would require. (ref: IBM eServer BladeCenter and Topspin
InfiniBand Switch Technology RedPaper, IBM Form Number: REDP-3949-00 -
http://www.redbooks.ibm.com/redpieces/abstracts/REDP3949.html )

Current 12x implementations also support configuring the 12x port as three
distinct 4x ports. To utilize the 12x connector, a standard 12x IB cable could be used to
connect to one other system. To utilize the three ports to connect to three other
systems, a special cable is required that has a single 12x connector at one end and
three 4x connectors at the other end. (ref: IBM p/n 26R0816
http://www-132.ibm.com/webapp/wcs/stores/servlet/ProductDisplay?productId=8779262
&storeId=1&langId=-1&catalogId=-840 )

But, if all of the connectors are used to provide one link from the first system to each of
the other three, there is no ability to provide direct links between the 2nd and 3rd, 3rd
and 4th, and 3nd and 4th systems. Two 4x links on each of the other three systems are
not being utilized.

In a prior article ( insert reference ) a new cable harness was described that
provides full mesh connectivity, every system directly connected to every other system,
between four systems, through the four 12x ports.

1

Page 2 of 4

To extend this direct connection topology, a second switch module can be
installed in each BladeCenter chassis, doubling the number of external connectors. Just
utilizing two 12x ports per system, a seven system configuration can be created. First,
4 systems are connected with the previously described cable assembly. Then, one of
the four systems is fully connected to three additional systems through a second of the
previously described cables. This leaves one of the two 12x connectors still unused on
all but the first system. (Th...